Midterm results of using the frame xenopericardial bioprosthesis in the aortic position with the easy-change system: Four-year experience of implantation
https://doi.org/10.29001/2073-8552-2021-36-1-117-122
Abstract
Purpose. The purpose of this work was to study the midterm results after the implantation of a frame-mounted xenopericardial bioprosthesis into the aortic position with the easy-change system.
Material and Methods.A total of 166 patients with mean age of 69.5 years underwent aortic valve replacement by bioprosthesis with the easy-change system at Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences between October, 2016 and October, 2020. Preoperative aortic valve peak pressure gradient was 79.6 mmHg; the mean gradient was elevated up to 46.3 mmHg. Echocardiography studies of aortic prosthesis and the left ventricle (LV) were performed in all patients by Vivid 7, GE, and IE 33 systems (Philips) preoperatively, before the discharge (day 14 after surgery on average), and 6–12 months after surgery.
Results. The control echocardiography studies, performed 6–12 months after surgery, showed that the hemodynamic characteristics of MedEng-BIO aortal bioprostheses were satisfactory. No statistically significant changes in the LV function were detected. The effective orifice areas of MedEng-BIO valves were 0.87 cm2 for the valve size 21, 1.1 cm2 for size 23, and 1.47 cm2 for size 25 mm. The peak pressure gradient decreased by 57.8% and the mean gradient decreased by 51.9% two years after surgery.
Conclusion. Obtained data suggest that the implantation of MedEng-BIO aortal xenopericardial bioprosthesis into the aortic position lead to adequate correction of hemodynamic parameters.
Supporting agencies: The reported study was funded by RFBR according to the research project № 20-315-90079.
About the Authors
K. A. Petlin
Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences
Russian Federation
Russian Federation
Cand. Sci. (Med.), Head of Department of Cardiac Surgery No. 1
111a, Kievskaya str., Tomsk, 634012, Russian Federation
E. A. Kosovskikh
Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences
Russian Federation
Russian Federation
Postgraduate Student, Department of Cardiovascular Surgery
111a, Kievskaya str., Tomsk, 634012, Russian Federation
V. A. Tomilin
Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences
Russian Federation
Russian Federation
Medical Resident, Department of Cardiovascular Surgery
111a, Kievskaya str., Tomsk, 634012, Russian Federation
Yu. A. Arsenyeva
Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences
Russian Federation
Russian Federation
Cardiologist, Department of Cardiac Surgery No. 1
111a, Kievskaya str., Tomsk, 634012, Russian Federation
B. N. Kozlov
Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences
Russian Federation
Russian Federation
Dr. Sci. (Med.), Head of the Department of Cardiovascular Surgery; Professor, Department of Hospital Surgery with the Course of Cardiovascular Surgery, Siberian State Medical University
111a, Kievskaya str., Tomsk, 634012, Russian Federation
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Review
For citations:
Petlin K.A., Kosovskikh E.A., Tomilin V.A., Arsenyeva Yu.A., Kozlov B.N. Midterm results of using the frame xenopericardial bioprosthesis in the aortic position with the easy-change system: Four-year experience of implantation. Siberian Journal of Clinical and Experimental Medicine. 2021;36(1):117-122. (In Russ.) https://doi.org/10.29001/2073-8552-2021-36-1-117-122
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